Category : C++ Source Code
Archive   : VCCRT1.ZIP
Filename : RAND.C

 
Output of file : RAND.C contained in archive : VCCRT1.ZIP
/***
*rand.c - random number generator
*
* Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines rand(), srand() - random number generator
*
*******************************************************************************/

#include

static long holdrand = 1L;

/***
*void srand(seed) - seed the random number generator
*
*Purpose:
* Seeds the random number generator with the int given. Adapted from the
* BASIC random number generator.
*
*Entry:
* unsigned seed - seed to seed rand # generator with
*
*Exit:
* None.
*
*Exceptions:
*
*******************************************************************************/

void srand (seed)
unsigned int seed;
{
holdrand = (long)seed;
}


/***
*int rand() - returns a random number
*
*Purpose:
* returns a pseudo-random number 0 through 32767.
*
*Entry:
* None.
*
*Exit:
* Returns a pseudo-random number 0 through 32767.
*
*Exceptions:
*
*******************************************************************************/

int rand ()
{
return(int)(((holdrand = holdrand * 214013L + 2531011L) >> 16) & 0x7fff);
}


  3 Responses to “Category : C++ Source Code
Archive   : VCCRT1.ZIP
Filename : RAND.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/